//
//  BController.h
//  self.view为nil引起的思考？
//
//  Created by Xie Wei on 2019/8/5.
//  Copyright © 2019 Xie Wei. All rights reserved.
//

#import <UIKit/UIKit.h>

NS_ASSUME_NONNULL_BEGIN

@interface BController : UIViewController

@end

NS_ASSUME_NONNULL_END
